Perception is a tricky thing. Memory is unreliable; we may think we see something but did we really? Was it something that our minds embellished, either because of altered perception or our own prejudices? Was it something important? Ask ten people about something they saw fleetingly from a moving vehicle and you’ll get ten different answers as to what they saw.

Rachel Watson (Blunt) takes the Long Island Railroad train from the Island into the City twice a day. She’s been through a lot lately; a divorce following the revelation that her husband Tom (Theroux) had been cheating on her with their real estate agent Anna (Ferguson) – and had worse still married Anna and had a beautiful baby daughter with her, after efforts for Rachel to get pregnant had turned out fruitless. She already had a problem with alcohol when they were married; now that problem has become full-blown alcoholism.

From the train she sees a house not far from the one she used to live in and where Tom still lives with her new wife. In the house live a beautiful blonde and her husband, the perfect couple to Rachel’s mind, who have everything she ever wanted but cannot have. It comforts her somehow that this perfect union exists. Then one morning she sees the wife in the arms of another man and this sends her into a tailspin. She gets blackout drunk and ends up in a field not far from her old house and the one that the not-quite-perfect couple live in.

Then comes the news that the woman is missing; her name is Megan Hipwell (Bennett) and husband Scott (Evans) is frantic. As Rachel was spotted in the area, she is questioned by Detective Riley (Janney) about the situation. Rachel tells the Detective what she knows but Rachel isn’t exactly the most reliable witness.

Consumed by the case, Rachel sets out to find out who the mysterious man was and to find out what happened to Megan. Slowly, as she stumbles drunkenly from one clue to another, she begins to get closer to the truth about what happened to Megan – and discovers to her shock that the answer is closer to her than she could ever know.

This is based on the runaway bestselling novel by Paula Hawkins and is quite frankly a hot mess. Director Tate Taylor (The Help) has a history of deftly weaving multiple tales of different women together into cohesive films but that doesn’t happen here. The focus is largely on Rachel but Megan and Anna are both heavily in the mix and we do get their points of view as well.

Blunt has gotten some strong praise for her performance as Rachel, even critics calling for Oscar attention but I don’t see it. Frankly, this is one of her weaker performances that I can remember. She is unconvincing when asked to do scenes of drunkenness; quite frankly I’ve spent a lot of time among the inebriated and this is more of a caricature than anything else. Blunt tends to be more successful here when we get glimpses of her underlying torment. Rachel is definitely not a happy woman and when Blunt gets to let glimpses of that out, the performance works.

She isn’t helped much by the other cast members. Their performances are mainly unmemorable, but that isn’t necessarily the fault of the actors. They are given preposterous dialogue to say and characters who have little or no development to work with. It’s like the filmmakers decided to do something Hitchcock-esque (which this is) but instead of writing actual characters they used stereotypes from other films to fill in the blanks. While Rachel’s alcoholism is a nifty idea, it’s used more as a gimmick than as a real interesting plot point.

I haven’t read the novel this is based on but I’m told it’s very well-written by people whose judgment I trust on such matters. I can’t believe though that the story is identical; it’s too pat, too been there-done that. The twists are telegraphed and let’s face it, if you can’t tell who the criminal is in the first twenty minutes you’ve been asleep.

Bailey as Megan shows some promise (she’s also in the much better Magnificent Sevenremake) doing her best Margot Robbie impression and ironically enough Robbie was originally considered for the role. Ramirez incomprehensibly has a Spanish accent for a character who’s supposed to be Arabic and Janney is unbelievable as a tough Detective Sergeant. I mean, think about it; these are all competent actors who are known for their consistently strong performances. Why are they all doing subpar work here all at the same time? One can only blame the filmmakers. The only actor who really makes an impression is Lisa Kudrow in a brief but important role who gets to utter the immortal line “Rachel! I haven’t seen you in a million years!” which may or may not be a conscious reference to Friends.

I’ve read some decent reviews for this thing and can’t for the life of me which movie those critics saw. Most of the reviews have been, like this one, on the negative side. The houses don’t look lived in, the lives don’t feel real. It’s like watching a movie in which Barbie and Ken dolls are used as surrogates. Blunt shows flashes of her normal brilliance but that is tempered with her portrayal of drunkenness as more of a lampoon than anything remotely approaching realism and that is symbolic of the movie’s issues as a whole; at the end of the day, this feels empty and without a connection to anything like real life. Why spend money on a movie that feels divorced from reality when you can watch a presidential debate for free?

REASONS TO GO: The alcoholism makes for an interesting plot point.REASONS TO STAY: The plot twists and the whodunit are incredibly predictable. The acting is surprisingly blah.FAMILY VALUES: There is violence, sexual content, profanity and a bit of nudity.TRIVIAL PURSUIT: This is the first film Taylor has made that hasn’t had Octavia Spencer in it.CRITICAL MASS: As of 11/8/16: Rotten Tomatoes: 44% positive reviews. Metacritic: 48/100.COMPARISON SHOPPING:VertigoFINAL RATING: 4/10NEXT:The Handmaiden